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    • 2. 发明授权
    • Method for alloying substances
    • 合金化物质的方法
    • US4708847A
    • 1987-11-24
    • US820886
    • 1986-01-17
    • Tadashi DonomotoYoshiaki TatematsuAtsuo TanakaMasahiro Kubo
    • Tadashi DonomotoYoshiaki TatematsuAtsuo TanakaMasahiro Kubo
    • C22C1/00B22D19/02B22F3/26C22C1/04C22C47/00C22C47/08C22C47/12C22C1/03C22C33/04
    • C22C47/08B22F3/26C22C1/0475B22F2998/00
    • An alloy is made of a first material and a second material which has a substantially lower melting point than the first material, by (a) forming from the first material a body which has multiple fine interstices; (b) pouring the second material in the molten state around the body formed from the first material; and (c) allowing the resultant mass to cool. Thus, in the parts of the resultant mass in which the body formed from the first material was originally present, an alloy mass comprising the first metal and the second material alloyed together is made. Optionally, the body made from the first material may be preheated, desirably to a temperature higher than the melting point of the second material; and optionally the molten second material may be pressurized so as to enter into the interstices of the body. The first material may desirably be, for example, tungsten, cobalt, chromium, titanium, iron, nickel, silicon, manganese, copper, niobium, tantalum, vanadium, gold, silver, aluminum, molybdenum, zirconium, or zinc; and the second material may desirably be, for example, aluminum, magnesium, copper, lead, tin, or zinc.
    • 合金由第一材料和第二材料制成,第一材料和第二材料具有比第一材料低得多的熔点,(a)由第一材料形成具有多个细小间隙的主体; (b)将熔融状态的第二材料从由第一材料形成的主体周围倾倒; 和(c)使所得物质冷却。 因此,在最初存在由第一材料形成的主体的所得到的质量部分中,制成包含第一金属和第二材料合金的合金块。 可选地,由第一材料制成的主体可以被预热,期望地达到比第二材料的熔点高的温度; 并且可选地,熔融的第二材料可以被加压以进入身体的空隙。 第一种材料可以期望地是例如钨,钴,铬,钛,​​铁,镍,硅,锰,铜,铌,钽,钒,金,银,铝,钼,锆或锌; 并且第二材料可以期望地为例如铝,镁,铜,铅,锡或锌。
    • 3. 发明授权
    • Method and apparatus for manufacturing composite material using pressure
chamber and casting chamber
    • 使用压力室和铸造室制造复合材料的方法和装置
    • US4572270A
    • 1986-02-25
    • US536850
    • 1983-09-29
    • Kiyoshi FunataniTadashi DonomotoAtsuo TanakaYoshiaki Tatematsu
    • Kiyoshi FunataniTadashi DonomotoAtsuo TanakaYoshiaki Tatematsu
    • B22D19/14B22D18/02B22D19/02C22C1/10C22C47/00C22C47/08C22C47/12B22D19/00
    • B22D18/02B22D19/02
    • A composite material is manufactured from a formed mass of reinforcing material and matrix metal by introducing the reinforcing material mass into a pressure chamber and holding it there, introducing molten matrix metal into the pressure chamber so as to surround the reinforcing material mass, moving the reinforcing material mass from the pressure chamber into a casting chamber of substantially smaller volume than the pressure chamber while it is still being surrounded by molten matrix metal, and then allowing the molten matrix metal to solidify while applying pressure. If the reinforcing material mass is preheated before being put into the pressure chamber, it can be kept away from the walls of the pressure chamber until after the molten matrix metal has been poured into the pressure chamber and thus will not lose heat to them; and, since the casting chamber can quite tightly conform to the size and shape of the reinforcing material mass, little extra matrix metal needs to be solidified around the reinforcing material mass. Accordingly the resulting composite material can be easily isolated without the need for much post machining.
    • 复合材料由成形的增强材料和基体金属制成,通过将增强材料块引入压力室并将其保持在其中,将熔融的基质金属引入压力室中以包围增强材料块,移动增强材料 材料质量从压力室进入到具有比压力室小的体积的铸造室,同时它仍被熔融基质金属包围,然后允许熔融基质金属在施加压力下固化。 如果增压材料在放入压力室之前被预热,则可将其远离压力室的壁直到熔融基体金属已经倒入压力室中,从而不会对它们发热; 并且由于铸造室可以非常紧密地与增强材料块的尺寸和形状一致,所以在增强材料块周围需要固定少量额外的基体金属。 因此,所得到的复合材料可以容易地隔离,而不需要大量的后加工。
    • 4. 发明授权
    • Silicon carbide whisker composite material with low non whisker particle
content and method of manufacture thereof
    • 低晶须颗粒含量低的碳化硅晶须复合材料及其制造方法
    • US4530875A
    • 1985-07-23
    • US536644
    • 1983-09-28
    • Tadashi DonomotoYoshiaki TatematsuAtsuo Tanaka
    • Tadashi DonomotoYoshiaki TatematsuAtsuo Tanaka
    • B22D19/14C22C47/00C22C47/06C22C47/08C22C47/12B22F1/00B22F9/00
    • C22C47/06C22C47/08Y10T428/249927Y10T428/2918Y10T428/2927Y10T428/2958
    • A composite material is made from a whisker body of silicon carbide whiskers containing not more than 5% by weight of non whisker particles of diameter greater than 150 microns, with a mass of matrix metal infiltrated into the interstices of the whisker body. The matrix metal is selected from the group consisting of aluminum, magnesium, tin, copper, lead, zinc, and their alloys. The bulk density of the silicon carbide whiskers is at least 0.07 gm/cm.sup.3. A method is also disclosed for making this composite material, in which first a quantity of silicon carbide whiskers containing not more than 5% by weight of non whisker particles of diameter greater than 150 microns is formed into a shaped mass with a compressive strength of at least 0.5 kg/cm.sup.2 and with a bulk density of at least 0.07 gm/cm.sup.3, and then this shaped mass is compounded with a quantity of the molten matrix metal by a pressure casting method. This formed mass of silicon carbide whiskers may be bound together by an inorganic binder, whicn may be silica, and whose volume percentage in the shaped mass of silicon carbide whiskers may desirably be less than about 25%.
    • 复合材料由包含不超过5重量%的直径大于150微米的不要晶粒的碳化硅晶须的晶须体制成,基质金属的质量渗透到晶须体的空隙中。 基体金属选自铝,镁,锡,铜,铅,锌及其合金。 碳化硅晶须的体积密度至少为0.07gm / cm 3。 还公开了一种用于制造该复合材料的方法,其中首先将一定量的含有不超过5重量%的直径大于150微米的不需要的颗粒的碳化硅晶须形成为具有抗压强度为 至少0.5kg / cm 2,堆积密度至少为0.07gm / cm 3,然后通过压铸法将该成形块与一定量的熔融基质金属混合。 这种形成的碳化硅晶须块可以通过无机粘合剂结合在一起,无机粘合剂可以是二氧化硅,并且其成形质量的碳化硅晶须的体积百分比可以理想地小于约25%。
    • 9. 发明授权
    • Composite material manufacturing method exothermically reducing metallic
oxide in binder by element in matrix metal
    • 复合材料制造方法通过基体金属中的元素放热还原金属氧化物
    • US4468272A
    • 1984-08-28
    • US525945
    • 1983-08-24
    • Tadashi DonomotoYoshiaki TatematsuAtsuo Tanaka
    • Tadashi DonomotoYoshiaki TatematsuAtsuo Tanaka
    • B22D17/00B22D19/14C22C47/00C22C47/08C22C47/10C22C47/12C22C49/04B32B31/00
    • B22D19/14B22D17/00C22C47/10C22C49/04B22F2998/00
    • First a quantity of reinforcing material is formed into a shaped mass bound together by an inorganic binder. Next, this shaped mass is compounded with a quantity of a molten matrix metal by a pressure casting method. The molten matrix metal includes a quantity of a certain element with a strong tendency to become oxidized, and the inorganic binder includes a metallic oxide which, when brought into contact at high temperature with this certain element, is reduced thereby in an exothermic reaction. Thus, during the pressure casting, extra heat is produced as the certain element reduces the metallic oxide, and this aids good penetration of the matrix metal into the interstices of the reinforcing material. The metal remaining from the oxide is dispersed in the matrix metal. This metallic oxide may be silica, zirconia, chromium oxide, yttrium oxide, cerium oxide, ferric oxide, zirconium silicate, antimony oxide, or a mixture thereof; and the certain element may be lithium, calcium, magnesium, aluminum, beryllium, titanium, zirconium, or a mixture thereof.
    • 首先,将一定数量的增强材料形成为通过无机粘合剂结合在一起的成形块。 接着,通过压铸法将该成形体与一定量的熔融基质金属混合。 熔融基体金属包含一定量的具有强烈氧化倾向的某种元素,无机粘合剂包括金属氧化物,当与该特定元素在高温下接触时,其被放热反应降低。 因此,在压力铸造期间,随着某些元素减少金属氧化物而产生额外的热量,这有助于将基质金属良好渗透到增强材料的间隙中。 从氧化物中残留的金属分散在基质金属中。 该金属氧化物可以是二氧化硅,氧化锆,氧化铬,氧化钇,氧化铈,氧化铁,硅酸锆,氧化锑或它们的混合物; 并且该元素可以是锂,钙,镁,铝,铍,钛,锆或它们的混合物。